<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://unpkg.com/vue"></script>
    <script>
        window.onload=function(){
            var app4 = new Vue({
                el: '#app-4',

                methods: {
                    reverseMessage: function () {
                        this.message = this.message.split('').reverse().join('')
                    },
                    addpeople:function(){
                        var x={ name:this.username,age:this.age,time:new Date() };
                        this.peoples.push(x);
                    },
                    removeall:function(){this.peoples=[];}

                    ,remove:function(idx){
                        this.peoples.splice(idx,1);
                    }
                },
                data: {
                    username:'',
                    age:null,
                    message: 'Hello Vue.js!',
                    peoples: [
                        { name:'刘晓峰',age:99 ,time:new Date()},
                        { name:'liuxiaofeng',age:32 ,time:new Date()}
                    ]
                }
                ,filters:{
                    hhmmss:function(v){
                        
                            return (v.getHours()+":"
                            +v.getMinutes()
                            +":"+v.getSeconds())
                    }
                    ,capitalize: function (value) {//'',null,0,Undefined
                        if (!value) return ''
                        value = value.toString()
                        return value.charAt(0).toUpperCase() + value.slice(1);
                    }
                }
            });
        }
    </script>
</head>
<body>
<div id="app-4">
    <p>{{ message }}</p>
    <input v-model="username">
    <input v-model="age">
    <button v-on:click="addpeople">添加</button>
    <button v-on:click="removeall">全部删除</button>
    <table border="1">
        <tr><th>序号</th><th>名字</th><th>年龄</th><th>添加时间</th><th>操作</th></tr>
        <tr v-for="(people,index) in peoples">
            <td>{{index+1}}</td><td>{{people.name | capitalize}}</td><td>{{people.age}}</td>
            <td>{{people.time|hhmmss}}</td>
            <td><button v-on:click="remove(index)">删除</button></td>
        </tr>
    </table>

</div>
</body>
</html>